Blar i Fakultet for ingeniørvitenskap (IV) på tittel
Viser treff 441-460 av 23135
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A Numerical and Analytical Investigation of the Relation Between Transport Properties and Grain Size Distribution
(Master thesis, 2018)There have been many and varied attempts describing the relation between transport and rock properties for porous materials, including the work of Kozeny (1927), Carman (1938), and Berg (1970). Common features of these ... -
A numerical and analytical study of stress fields around defects occurring in additive manufactured components
(Master thesis, 2020)Denne rapporten tar sikte på å vurdere påvirkningen av indre defekters plassering, orientering og geometri på utmattels ytelsen til 3D-printede komponenter ved å evaluere spenningsintensitets faktoren K. Grunnleggende ... -
A Numerical and Experimental Study of a Multi-torus Floating Solar Island Concept
(Master thesis, 2019)En flytedel som skal brukes til plattform for en flytende soløy er testet i modellskala både med og uten solcellepaneldekket. En realistisk skalert membran er brukt for å tilsvare dekket. Begge modellene ble testet både i ... -
A numerical and experimental study of a two-dimensional body with moonpool in waves and current
(Doctoral thesis at NTNU;2015:98, Doctoral thesis, 2015)The present work has relevane for the behaviour of a vessel equipped with a moonpool in ocaean waves. A moonpool is an opening in the middle of the vessel used for various marine operations. Resonant wave oscillations in ... -
A Numerical and Theoretical Study of a Multi-torus Solar Island Concept
(Master thesis, 2020)Teoretiske og numeriske studier er gjennomført for en flytende konstruksjon bestående av sirkulære flytere koblet sammen med elastiske bånd, en såkalt multiflyter. Stukturen er designet for å være et flytende fundament for ... -
A numerical investigation of erosion around offshore pipelines
(Chapter, 2017)In this paper, a numerical investigation is carried out to model sea bed erosion around offshore pipelines deployed at the shoreline. The open-source CFD model REEF3D is used for the numerical modeling. The model solves ... -
A numerical investigation of strain-softening in soft clay for a modelled shear vane
(Master thesis, 2018)The strain-softening phenomenon has been extensively studied the last decades in context of numerical modelling and progressive failure mechanism. In this study, a vane is modelled in soft clay with a negative dilatancy. ... -
A numerical investigation of the cracking behaviour of reinforced-concrete tie elements
(Journal article; Peer reviewed, 2018)The cracking behaviours of reinforced-concrete (RC) ties are investigated by conducting virtual experiments using non-linear finite-element analysis. The assumptions in the model are verified by benchmarking the classical ... -
A numerical investigation of thermal performance of coaxial steel geothermal energy piles in Norwegian cold-climate and soft ground conditions
(Master thesis, 2023)Geotermisk energi er en fornybar energikilde som kan utnyttes for oppvarming og avkjøling av bygninger gjennom geotermiske varmepumper. I de siste årene har det blitt populært å implementere geotermiske varmevekslere i ... -
A Numerical Investigation of Turbulent Combustion in Pool Fires using OpenFOAM
(Master thesis, 2022)Brann er en faretype som kan p˚aføre store økonomiske tap og føre til tap av liv. Økt kunnskap rundt nøyaktig modellering av brann er ett av de første stegene for ˚a f˚a en bedre innsikt i dens mekanismer og gir bedre ... -
A numerical method for junctions in networks of shallow-water channels
(Journal article, 2018)There is growing interest in developing mathematical models and appropriate numerical methods for problems involving networks formed by, essentially, one-dimensional (1D) domains joined by junctions. Examples include ... -
A Numerical Simulation of Permafrost Thermal Regime under a Heat Pump Chilled Foundation in Longyearbyen, Svalbard
(Master thesis, 2021)Climate change in the Arctic causes a critical warming of the permanently frozen subsoil. The livelihood of over 3 million people is affected by the projected degradation of permafrost until 2050. The sustainable development ... -
A Numerical Study of a Damaged Ship in Beam Sea Waves
(Doktoravhandlinger ved NTNU, 1503-8181; 2009:268, Doctoral thesis, 2009)An important objective of survivability criteria for passenger vessels is to ensure that there is sufficient time called Time To Capsizing (TTC) to evacuate passengers and crew members in case of emergency. This requires ... -
A Numerical Study of a geosynthetic reinforced road embankment using nature-based basalt geogrid
(Master thesis, 2022)Sammendrag I geoteknikk er det utfordrende å bygge veier og andre konstruksjoner på naturlig myk jord. Deformasjonsvansker oppstår ofte på fyllinger og fører til kollaps. Resultater av dette er enten en betydelig setning ... -
A Numerical Study of a Multi-torus Floating Solar Island Concept, with the use of Computer Programming
(Master thesis, 2020)En halvt nedsenket fler-torus modell er implementert numerisk, med hensikt å undersøke responsen til en slik struktur. Den numeriske modellen, bestående av flere sirkulære flytere koblet sammen med elastiske bånd (strekkstag), ... -
A numerical study of beam-to-column joints subjected to impact
(Journal article; Peer reviewed, 2016)Limited documentation is concerned with the behaviour of steel joints subjected to severe impulsive loading originating from incidents such as explosions or impact. In this paper, finite element simulations are used to ... -
A numerical study of capacity and stiffness of circular skirted foundations in clay subjected to combined static and cyclic general loading
(Journal article; Peer reviewed, 2017)Skirted foundations have been widely applied as offshore foundations for several decades. In design, the use of failure envelopes is convenient for assessing stability under combined loading. A large number of studies on ... -
A numerical study of the second-order wave excitation of ship springing by a higher-order boundary element method
(Journal article; Peer reviewed, 2014)This paper presents some of the efforts by the authors towards numerical prediction of springing of ships. A time-domain Higher Order Boundary Element Method (HOBEM) based on cubic shape function is first presented to solve ... -
A Numerical Study of Wave-in-Deck Impact using a Two-dimensional Constrained Interpolation Profile Method
(Doktoravhandlinger ved NTNU, 1503-8181; 2009:153, Doctoral thesis, 2009)A Constrained Interpolation Profile method following Hu and Kashiwagi (2004) is developed for wave impact applications. Two-dimensional, unsteady, viscous and incompressible flow is assumed. The numerical model is a finite ... -
A Numerical Study on a Flopper Stopper for Leg Positioning of a Jack-Up Barge
(Chapter; Peer reviewed, 2017)Jack-up barges are commonly used for marine operations in the offshore oil and gas, and offshore wind industries. A critical phase within the marine operation activities is the positioning of the jack-up legs onto the ...